Replace/Repair Fan Drive Group. (FIGURE 2-22)

TM 55-1905-223-24-4

2-28.

This task covers:

a. Removal,

b. Repair,

Replacement.

INITIAL SETUP

Tools

Equipment Condition

Tool kit, general mechanic's

Engine secured and tagged "Out of Service"

rail and marine diesel engines,

(TM 55-1905-223-10).

Battery bank disconnected.

Combination wrench set, metric

Coolant drained.

10mm thru 24mm,

Radiator enclosure and fan removed

5120-01-046-4979

by Direct Support personnel.

Materials/Parts

Clamping plate P/N 3904690

Groove pulley P/N 3902709

Fan support P/N 3909888

Cleaning solvent, Item 7, Appendix C

Lubricating Oil, Item 14, Appendix C

Warning tags, Item 21, Appendix C

Coolant, Item 4, Appendix C

REMOVAL

a. Remove screws (1), clamping plate (2) and groove pulley (3).

b. Remove screws (4) from fan support (5).

Remove fan support (5).

REPAIR

a. Clean clamping plate and groove pulley in cleaning solvent.

b. Wipe lubricant lightly over plate and pulley.

REPLACEMENT

a. Install fan support (5), secure with screws (4).

b. Install groove pulley (3) and clamping plate (2), secure with screws (1).

2-74